| Grade | Genuine Watch | AAAAA movement |
| Movement | Genuine movement | Swiss movement |
| Time Accuracy | -3/+5 sec per day COSC certified | -5/+6 sec per day COSC certified |
| Stainless Steel Type | Brand-specific (e.g., 316L steel, titanium, ceramic) | Claims “same materials” (usually 316L steel with plating) |
| Logo & Markings | laser etchings | Sapphire crystal correct date magnification |
| Dial | Genuine Watch | Exact detail and font |
| Waterproof | Model-specific (e.g., 30m, 100m, 300m) | Tested up to 300m |
| Life expectancy | Lifetime | Lifetime |
| Warranty | 2 Years | Up to 5 Years |
Features:
– Iconic Nautilus Design: The watch features the signature porthole-shaped case of the Nautilus series, with a polished and satin-finished contrast that replicates the authentic design.
– Deep Blue Dial: The dial is a deep blue with horizontal textured patterns, radiating from the center, adding depth and elegance.
– High Legibility:The watch includes dual windows for the day and month, and a date window, all with black text on a white background for easy reading.
– 24-Hour Display and Moon Phase: Elegant 24-hour sub-dial and moon phase display enhance the sophisticated look.
– Sapphire Crystal Back: The back of the watch is fitted with a sapphire crystal, offering a view of the intricate craftsmanship.
– Rubber Strap: Upgraded to a rubber strap, providing a sporty and stylish look suitable for all seasons and various fashion styles.
– Annual Calendar Function: The watch accurately distinguishes between 30 and 31-day months, requiring only one adjustment per year.



